Oh come on....surely this product exists...one can easily tell that the enclosure has to be around 4 feet tall in order to house all the components claimed in this box  
Lets not forget that there is zero ventilation ducts in this case and there is still room to house 3 power supplies, 4 x 120mm fans and 20 chips which dissipate 4800w heat that will roast anything in the vicinity...amazing technology....lmfao
So they claim that 20 chips use 3 power supplies...hmmm how does the math on that one work.. 2 boards with 10 chips each sharing 1.5 power supplies?  
Anyone falling for that scam is a complete retard ...sure lets buy this superbox which is overpriced when we can buy 10 S5 for 2000 and 4 of the bitmain power supplies totaling 2400 for a better efficiency and $100 more...suuuuuure they don't need the hardware  

cloudedthinking bitcoin impersonator = 8TH .6W/GH 2300$
10x s5 powered 11.5th@.51W/GH 2400$

It goes to show that greed can make people do such stupid things....hopefully nobody ordered anything from this site

I cant believe that so many people fell for this SCAM and actually provided shipping addresses  

Some scientist you are...you should know that gravity is a constant  ...want an apple to race with?

Back to topic...what were your results from before and after with your "8x as conductive as MG grease" AS5 ...I am very curious to know your results as you actually went through all the trouble to remove 1 whole heatsink assembly...soooo what were the results from using your super duper AS5...was it 8x cooler? any numbers at all from your clearly extensive testing to back anything up or just another lame signature spam campaign hmmmm Im done ...thanks for the laugh

we must have gone to different schools

science    
1.
a branch of knowledge or study dealing with a body of facts or truths systematically arranged and showing the operation of general laws:
the mathematical sciences.
2.
systematic knowledge of the physical or material world gained through observation and experimentation.
3.
any of the branches of natural or physical science.
4.
systematized knowledge in general.
5.
knowledge, as of facts or principles; knowledge gained by systematic study.
6.
a particular branch of knowledge.
7.
skill, especially reflecting a precise application of facts or principles; proficiency.

I guess your science is...if you cant convince them with facts, then baffle them with bullshit? Of course PRICE and composition have no bearing on anything...lets buy 150G worth of AS5 and re-do all our miners...NOT
Science..the art of bullshit?

Im still waiting for you to re-paste the other 7 chips on your SP20 and post the before and after results Mr Scientist

Again here you go with your science of LIKELY which is by no means evidence lol
as you can see from his post his start volts are .67 which is much higher than the ones doing .5x hmmmm wonder why they aren't getting the proper volts...you should know that the start volts are within .005 of the setting in the gui... could there be a short somewhere  
He could have also damaged the boards taking the heatsinks off...so many variables but back on topic AS5 is not really the best choice to use based on price and composition

Arctic Silver 5 3.5G tube is $10
MG Chemicals non-conductive grease which gives the same result is $15 for 150g and how many grams does it take to re-do an entire machine hmmmm....

Now you are just talking shit.
u took 1 heatsink off and reapplied grease to it and call it safe without having the board schematics...try doing what the OP did and post your results ...have you re and re an entire machine to base your results on? I have... and the OP has fucked up his machine as you can clearly see from his results so please put your ego aside...or paste up an entire SP20 with AS5 and post your results like the OP

as scientific as "likely" ....cheers  
If we are to be scientists we should perhaps quote guy who said that epoxy is not necessary to re-secure the heatsinks as the glue was there to hold them in place during shipping but I digress...just trying to give SAFE advice to someone who clearly has no idea what they are doing (OP)

I just pulled that warning from the AS5 site...I don't know what the hype is all about with that anyways there are much better thermal compounds out now and cheaper than silver as well
I still don't think its a good idea to use AS5 on top of the ASIC, that could likely be the reason why they have other compounds which are not capacitive ...likely and maybe are just guessing that it wont screw anything up and better safe than sorry I always say...that warning is there for a reason, keeping in mind that not everyone knows how to even apply grease we could assume its likely though  

Not Electrically Conductive:
Arctic Silver 5 was formulated to conduct heat, not electricity.
(While much safer than electrically conductive silver and copper greases, Arctic Silver 5 should be kept away from electrical traces, pins, and leads. While it is not electrically conductive, the compound is very slightly capacitive and could potentially cause problems if it bridges two close-proximity electrical paths.)

Here is what it should look like after:


This is the mess that was before:

For starters, you should NOT have used anything with SILVER near ASIC and I think that is half of the problem...I also noticed that you are not running it in the enclosure it came in
You should only have a very small amount of grease on the top of the chip and nothing anywhere else...I see in the data you posted that the volts are very low on 3 of the chips

Use another form of thermal compound without metal in it like MX-4.
Keep in mind that due to the half-assed grease job there may be leftover grease in places it was never meant to be...at least on my miners it was everywhere..the sides of the heatsinks, between the chips, everywhere...very messy and the dust loves to stick to that grease too...
I used MG chemicals non conductive grease as it calls for quite a bit of it if you remove the grease between the copper shim and the aluminum during the process.
I re-did a couple of machines which were throttling at .62v prior to pasting and they run a lot better now...I have pics somewhere of the process will upload when I can..the original job was horrible 

Are these the same settings you had prior to re-pasting and you were getting around 1400GH/s before this?
Also since you are undervolting there is no reason to have such a spread from .67 start to .69 max unless you are in a hot location..if that is the case just drop the max voltage to .68
In the field "restart miner if rate below" ... what do you have in that field, and why do you have 272w for the max watts on all 4 loops when the realistic value you should have for that voltage is more like 230w per loop

Why did you take the boards out of the original case BTW...there is a reason the airflow is over the boards in the way they are laid out..you may be cooling the top of the board ok but the back with all the power components needs cooling as well
You have 22 hardware errors in half an hour...u definitely did something wrong in the process...did u get rid of the glue that was holding the heatsinks down? possibly damaging something in the process?

There are no settings to achieve those numbers in the real world with the factory firmware which is:

250W 500GHs eco mode
~650W 1000GHS normal mode
there are some in between frequency and voltage settings for 450W and 500W (not defaults) which give 850-900GHS more info on that in this thread and my review thread
450W 850GHS
500W 900GHS
I have not gotten around to turbo yet will tackle that tomorrow
As for quiet, using either of phils or my settings for 850-900 range you will have guaranteed quiet and even on stock speed its quiet just not as efficient

I see your point but unfortunately I cant help you with this setup... you can find some info here for compiling under linux
http://ck.kolivas.org/apps/cgminer/
Use CGMiner 4.9 as it has support for Avalon 4.1 if you compile it with Avalon support flag and once you get it going it would be great if you could let us know how you did it  

I never said my units have a problem with cooling at all...I just mentioned that they are running in a very cold environment so you would understand why your inlet temp is 33C and mine is 10C and the resulting outlet temp differences....I am fortunate to have a cool location to house my miners naturally. You can run the miners and achieve similar results regardless of where you put them really at this voltage...any extreme cooling benefits would only result in lower fan speeds as the chips all adjust voltages
I will be posting a review of SP20 in the next week
As I said 2.6.7 is old test version so anything is possible. Keep in mind that even though you set the upper voltage limit to .75v (default) none of your chips are using even close to that in the screenshot you posted...that's why I suggested upper limit of .72v, that and also the extra 100 or so GH/s u get above that is around 1W/GH which is not worth it
Learning is something we all do every day but it helps to pay attention....would you buy a hot rod and floor it out of the dealership parking lot without putting it through all the gears and not expect to hit a wall or 2?

You should re-read my previous post and pay attention to the screenshot...I already commented on your firmware version and what to do about that, and notice that no A/C is going to bring your inlet temp down to 10C as in the screenshot I posted where my miners are cooled by Canadian winter which beats any A/C (its -40 today but miners are in 5C environment)

As I thought, none of your chips are even using higher than .73v (actually only 1 is and its not very happy about it as you can see in YELLOW) and the rest are borderline throttling /at their temp max.
the fan setting of 10 should not be used with stock settings under any means, and that is why the default is NOT 10
Remove the red herring from your setup and post back your results afterwards...and use manual selection to choose firmware 2.6.14 as I mentioned earlier 2.6.7 is buggy.
I don't see how you are testing for excessive cooling when you are cooking your chips  
I think paying closer attention to the fine details will do a lot in helping you..if Im not mistaken you ended up with the SP20 buying them thinking they mine scrypt coins?

First off you can disregard the 1865 as there is no way any SP20 is hashing at that speed especially with 33C inlet temp
Easy fix here and your temps are WAY too high....all your chips are throttling for sure with the fan at 10%... what temperature is the room the miners are in?
Can you post a screenshot of the ASIC STATS please but I already know what I am going to see there  I just am curious about the numbers  
You are using version 2.6.7 which is 1 of the earlier versions they added auto fan. I Strongly suggest to upgrade to 2.6.14 firmware for starters and set the upper voltage limit to .72 with auto fan and post your results please.. u should be getting ~1.5TH and 1050W with .72v cap compared to the 1200ish watts its using now for the same effect
Your temps will most likely not be in this range but the hashrate should be in check with the voltage

Yes of course it is possible but a waste of power to use a full size pc when a RPi is $30-40ish, runs Linux and does that job already, not to mention power usage is minimal compared to a dedicated desktop of any sort.
I did all of my tests using the TP-Link but am going to get RPi rev B just to have....the newest model of that is a lot better but there is no firmware support for that yet only revision B
I think that there are no other instructions for connecting to a Linux based unit as its already been done in the most efficient manner but that's just my opinion...how many units are you planning to deploy?
I have always been a fan of stand-alone miners but after seeing this interface I want to see how well it can manage more than 1 unit...seems a total waste to have a controller just for 1 miner but then this is geared for multiple unit deployment

Thanks for helping verify the results...its a pleasure to be able to give back to the community and I figured one good turn of winning a miner deserves a good turn of helping others who may have or consider getting Avalon 4.1
I really like this miner the build quality and workmanship are good, it runs quietly for home use considerations...the firmware definitely needs work and tweaking and a price drop would definitely sell more of these but at what loss to the manufacturer....there is no comparison between this miner and any Bitmain product for example night and day not even the same planet from workmanship to materials used

Last off please can we leave chip politics out of this thread this is not a discussion about the past it is about Avalon 4.1 miner lets move on please its 2015
off-topic post removed

I didn't bother messing with the fan as its already so quiet its almost soothing

so the limit for 7250 is around 900GH/s safe to say... I was working my way up from lower voltages until the pool speed matched the miner to get my final results ...its just a matter of what frequencies are used from the looks of it...I guestimated the numbers I used and watched the APC change wattage with each setting but now I need a break from it before I go for turbo mode lol

I got my test data after a longer period and am pretty happy with the results as I hit over my 900GH/s target and don't like to miss  
Settings are
400:370:340 7250v and auto volts
Miner starts out using 539W and within 16 or so mins is down to 499W and poolside giving the same results which is important to me as the config page can say 1 thing but reality at the pool can be quite a shocking difference
.5489W/GH works for me 909GH/s @499W
The best part about this speed is how quiet the miner is
I think its quieter than C1 and S3 actually it is the quietest miner I have used with the exception of USB miners  







My 3 preset settings so far (editing the eco, normal and turbo files for ease of switching modes but customs mode with auto volts does the same thing using those settings:
ECO mode (still needs tweaking but normal is a better deal for more output) :
{
"avalon4-freq" : "340",
"avalon4-voltage" : "6875"
}
 gives 431W for around 795GH/s

NORMAL MODE:
{
"avalon4-freq" : "400:370:340",
"avalon4-voltage" : "7250"
}

gives 909GH/s for 499W best bang for the buck

TURBO mode:
{
"avalon4-freq" : "450:390:370",
"avalon4-voltage" : "7750"
}
 this gives around 1TH with lowest power usage of 588W

Nice results u got as well phil pretty damn close

Im using 275 frequency  @ .745v for testing which is broken in the firmware (you cant set it in the dropdown menu it comes up as 2,275MHz)
The closest you will get in dropdown is 268.75 which is 1085GH/s ...bitmain really needs to update the firmware for these but they do a great job for heating with minimal noise
Ambient room temp is 72F
Depending on which batch of C1 you have, there are different fans on the rads...it will either be 3 fans plugged into 2 headers which are the more powerful fans, or 1 fan into each of 3 headers which I believe are the first fans that were used....the lower powered fans use .1A less than the stronger ones not sure of exact numbers but there is a difference
When Im done testing the Avalon for efficiency I will plug the C1 in to my APC and see how much power it draws at different frequencies...give me a day or 2 time permitting

the best way to save money is to tune each machine to the least amount of errors ...and as for your question about S3 and S3+ since you know about the difference there...you should know there are way more than 2 variations of S3/S3+  (more than 10)
Have some fun and get a tester to see what each machines output max is....and it doesn't have to do with set clock speed and voltage as you will find out...
From what I have gathered but not tested/verified is that with the last firmware update for S3/+ that voltage adjustment is disabled so don't use that firmware....
Sorry I cant help I don't have any S3 left but no 2 machines run the same....I know because I tweaked at least 50 S3s for best output before they went on their way but then the price of bitcoin was more than double what it is now so power was not an issue
If your machine is clocked at say 500GH/s and submitting less shares than one clocked at say 231 then its time to adjust....oh the joys of mining